ABC Hornet

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Type Flat engine
National origin United Kingdom
Manufacturer ABC Motors Limited
Designed by Granville Bradshaw
First run 1929
Developed from ABC Scorpion

The ABC Hornet was an 80 hp (90 kW) four-cylinder aero engine designed in the late 1920s by the noted British engineer Granville Bradshaw for use in light aircraft. The Hornet was effectively a double Scorpion and was built by ABC Motors, first running in 1929.[1]

In 1931 the engine was re-designed, including the adoption of the new Hiduminium alloys for the crankcase, exhaust manifolds and pistons.[2]


Specifications (Hornet)[edit]

Data from Lumsden[3]

General characteristics

  • Type: 4-cylinder, horizontally opposed, air-cooled piston engine
  • Bore: 4.02 in (102 mm)
  • Stroke: 4.8 in (124.5 mm)
  • Displacement: 243.18 cu in (4 L)
  • Length: 25.5 in (648 mm)
  • Width: 39 in (990 mm)
  • Height: 28 in (711 mm)
  • Dry weight: 225 lb (102 kg)



See also[edit]

Related development
Comparable engines
Related lists



  1. ^ Lumsden 2003, p. 54.
  2. ^ "ABC 'Hornet' Modified" (PDF). Flight: 335. 17 April 1931. 
  3. ^ Lumsden 2003, p.276.


  • Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.

External links[edit]